Effectivity of Spherical Object Reconstruction Using Star-Shaped Simplex Meshes

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MATULA Pavel

Rok publikování 2002
Druh Článek ve sborníku
Konference 1st International Symposium on 3D Data Processing Visualization and Transmission
Fakulta / Pracoviště MU

Fakulta informatiky

Citace
Obor Využití počítačů, robotika a její aplikace
Klíčová slova spherical object reconstruction; simplex meshes; deformable models; cell nuclei segmentation
Popis Three-dimensional objects of an arbitrary shape and topology can be reconstructed using Delingette's general reconstruction algorithm based on simplex meshes. The method can handle volumetric images as well as three-dimensional range data. The reconstruction is performed in two stages. First, the initialization stage creates a simplex mesh in the vicinity of the input data. Then, an iterative refinement algorithm decreases the distance of the mesh from the data while preserving required shape qualities of the mesh. The general method was adapted to the reconstruction of spherical objects. The basic idea is to consider only star-shaped simplex meshes for the representation of object boundaries and therefore the iterative refinement algorithm is faster and more stable. This paper provides comparison of the effectivity of both methods. The methods were tested on real volumetric images of cell nuclei which were acquired using an optical microscope.
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